EP 0056444 A3 19820922 - PHOTOGRAPHIC ELEMENTS CONTAINING BLOCKED PHOTOGRAPHIC REAGENTS AND PROCESSES EMPLOYING SAME
Title (en)
PHOTOGRAPHIC ELEMENTS CONTAINING BLOCKED PHOTOGRAPHIC REAGENTS AND PROCESSES EMPLOYING SAME
Publication
Application
Priority
US 22040880 A 19801229
Abstract (en)
[origin: EP0056444A2] lmidomethyl blocked photographic reagents are useful in photographic elements and processes. The blocked photographic reagents have the structure:whereinX represents the atoms to complete a 5- or 6- membered ring or ring system;R represents hydrogen, alkyl of 1 to 4 carbon atoms or aryl of 6 to 12 carbon atoms; andPR represents the residue of an organic photographic reagent containing a heteroatom through which it is joined to the imidomethyl blocking group.
IPC 1-7
IPC 8 full level
C07D 403/12 (2006.01); G03C 7/26 (2006.01); G03C 7/305 (2006.01); G03C 8/00 (2006.01); G03C 8/08 (2006.01)
CPC (source: EP US)
G03C 7/30511 (2013.01 - EP US); G03C 8/00 (2013.01 - EP US); Y10S 430/161 (2013.01 - EP US)
Citation (search report)
- [Y] DE 2250136 A1 19740502 - DU PONT DEUTSCHLAND
- [A] EP 0009989 A2 19800416 - EASTMAN KODAK CO [US]
- [AD] US 4009029 A 19770222 - HAMMOND HOWELL ALLEN, et al
- [YP] US 4263393 A 19810421 - CHEN CHIN H
- [Y] RESEARCH DISCLOSURE, no. 195, July 1980, reference 19507, page 285, Havant Hampshire (GB);
Designated contracting state (EPC)
BE CH DE FR GB
DOCDB simple family (publication)
EP 0056444 A2 19820728; EP 0056444 A3 19820922; EP 0056444 B1 19840509; CA 1152073 A 19830816; DE 3163533 D1 19840614; JP S57135949 A 19820821; JP S6242261 B2 19870907; US 4350752 A 19820921
DOCDB simple family (application)
EP 81109012 A 19811027; CA 389821 A 19811110; DE 3163533 T 19811027; JP 21012281 A 19811228; US 22040880 A 19801229